Burglar guard



BURGLAR GUARD Filed Dc. 18, 1926 'fiven 1'02? lailuck J aw v F #YW Patented Sept. 27,1927.

UNITED'YSTATES 1,643,293 Price.

PATENT PATRICK J. CLARKE, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO MATTHEW JAROS, OF CHICAGO, ILLINOIS.

BUReLAR GUARD.

Application filed December 18, 1926. Serial No. 155,755.

This invention relates to a burglar guard. One of the objects of the present invention is to provide an improved and simplified form of a burglar guard which is particularly adapted for use in stores, banks,

express cars and other places where valuables are kept, for the purpose of preventing robberies, and its object is to so overcome the would be robber as to render it impossible for him to carry out his designs or to escape with his booty before he could be disarmed and placed under arrest.

A still further object of the invention is to provide a simple and improved burglar guard which can be economically manufactured and produced at a reasonable cost.

These and other objects are accomplished by providing construction and arrangement of the various parts in the manner here1n after described and particularly pointed outin the appended claims.

Referring to the drawings, Figure '1 is a top plan view showing the construction of my improved form of burglar guard; I

Figure 2 is a longitudinal cross sectional view of the same;

Figure 3 is a cross sectional view taken on the line 33 in Figure 2; and

Figure 4 is a fragmentary side elevational view showing the safety in position to render the device inoperative.

In illustrating one embodiment of my invention I have shown the same as comprising a casing or container 10* which is preferably made of sheet metal and a removable cover 11 which telescopically connects wlth the casing 10. The casing 10 is provided with side flanges 12 which in turn are provided with a plurality of gas escaping apertures 13. Pivotally mounted by means of eyes 1 1 on the top side of the cover 11 1s a bail or, striker 15. The bail 15 has one end as shown at 16 extending through the eyes 1 1 as clearly shown in Figure 1, and supports a torsion spring 17 thereon. One end of the spring 17 is provided with a long end as shown at 18 which normally engages the top side of the cover 11. The other end of the spring as shown at 19 is bent outwardly to engage one side of the bail 15. The spring is normally held under a torsion tension to actuate the bail in a counter clock wise direction when looking at the device from the position shown in Figure 2.

Mounted within the casing 10 is a-fragile noxious gas container 20 which in the form shown in the drawings is a glass bottle. This glass bottle container 20 is normally held in a prostrate position within the casing 10 and is prevented from displacement within the container by means of a metal bracket 21 which in turn is secured within the casing in any well known manner and substantially embraces'the noxious gas container 20. The bottle or container 20 is provided with a stopper 22. Positioned directly above the glass container 20 is a shatter pin 23 which is reciprocally mounted in the cover 11 of the casing. The shatter pin 23 is supported in position by a sleeve 24 secured to the under side of the cover by rivets 25. The head of the shatter pin is located in the path of the free end of the striking bail 15 so that when the striking bail is released in the manner hereinafter described, the free end thereof will strike the shatter pin 23, and shatter the noxious gas container or bottle 20 and permit the noxious gas within the container to immediately pass out through the. apertures 13 in the cover 11 to fill the room and prevent the robber from accomplishing or carrying out his designs. \Vhen the trap or burglar guard is set the bail 15 is swung to a position shown in Figure 2, in which position a latch 26 pivoted to an eye 27 secured to one side of the cover 11 engages the free end as shown at 28 of the bail 15. Connected to the eye 27 is a string or cord 28 which has the other end thereof connected to the wall of the room in whichthe trap is set. Mounted intermediate the ends of the string or cord 28 is anextension spring 29 which normally holds the string taut. Connected to the free end of the latch 26 is a second cord or string 30 which has its free end connected as shown at 31 to the first cord or string 28. Mounted between the ends of the string or cord 30 is a second extension spring 32 which normally holds the string 30 in a relatively taut position. The other end of the casing 10 is connected to another wall of the room in which the trap is set by means of the third string or cord 33 and at eye 34 which in turn is secured to the cover 11 of the casing. Then it is'desired to place the trap or guard in position the casing may be positioned on one side of the room where it is hidden from view and attachedby means o f the string 33 to one side oflthe room and thestring =orl cord 28 stretched across the room adjacent the floor so that when the would be robber enters the room he will trip'on the cord 28: and release the latch 26 from the free end of the bail 15 which in turn causes the bail through the I action of the torsion spring 17 tost'rik'e; the shatter pin 23 thereby shattering the glass container 20 containing the noxious gas and permitting the gas todifiusethroughthe apertures 13 fin the room. andhovercome the would bero bber; When, it. is desired to render the burglar guard inoperative even though the latch 26, is connected to the bail 15 Ihave provideda safetyin the form of curvedbail '35 Wl1iCl1 is pivoted to the eyes 36 secured to the cover 11 This curved bail 35 ;isadaptedtobe swungover so as to embrace the shatter pin 23. (see Figure 4). so

that ifthejbail 15 is accidentally released by the latch 26 the freeendther'eof will not strikethsshatter, pin 23. 1' From the above description it willbe seen thatfI have provided a very simple and eliici'ent burglan guard, and one which can be readily set ,on the floor across the door of,t he entrance of a store, bank or even a safelso that the same is positioned in the path of the wouldbe burglar. It will be noted that I have shown in thedrawings the noxious gas, container as comprising a glass bottle with the ordinary stopper. It will of course be understood that various forms of glass containers having noxious gases under; pressure may be utilized with a permanent form of seal so thatv various pressures and different types of noxious gases may be employed andstillbe Within the contemplation of my invention.

While in the above specificationI have clescribed one'embodiment which myinvention may assume in practice it will of course be understood that the same is capable ofrmodification', and t-hatmodification may be employed without departing from the spirit and scope of the invention as expressed in the following claims.

What I claim as my invention and desire to secure by Letters Patent is:

1. A burglar guard comprising a' casing, a fragile gas containermounted in said casing, a shatter pin mounted in said casing above said container, a spring. actuated striker mounted upon said casing and adapt-- ed to strike said, shatter locking said striker under spring tension.

A urg ar gua v o pri g a asi g, a fragile jgas container mounted in said casing, ashatter' pin mounted in said casing in position to engage the fragile gas container, striking and tripping means mounted on said casing and operatively related to said shatter pin, and means for rendering said striking means ineffective ,to strike said shatter pin. A burglarguard comprising a casing, a fragile gas container mounted in said casing, a shattermember mounted in said casing adaptedto engage the fragile gas container, a. striking member mounted on said casing, andv en'gage 'able with said shatter memb'er aspring normally engaging said strik+ ing member and means pivotally mounted on fsaid casing and adapted to embrace said shattern ember for. rendering said striking,

member, ineffective to strike said shatter member.

, 4;. A burglarguard comprising a casing, a fragile gas container mounted in said casing, a;cover for said casing having a plurality of gas escaping apertures therein, a reciprocatingshatter member mounted in said cover and positioned abovesa-id fragile gas container, a striker pivoted to said cover and spring pressed in a direction to strike said shatter member and a latch pivoted to said cover and normally engagingsaid striker to hold said striker under spring tension, I p i 5. A burglar guardcomprising a casing, a fragile gas container mounted in said casing, a shatter member mounted in said casingand adapted to engage said fragile gas container, a spring pressed striker mounted on said casing adapted to engage said shatter member, a latch pivoted to said casing and engageable with said striking member and a tripping connection extending from said latch wherebysaid latch may be disengaged from said striker for permittingsaid striker to strike said shatter pin and shatter said fragile gas container. i

In testimony whereof I have signed my name to this specification, on this 14th day of December, A. D. 1926 PATRICK, J. CLARKE.

pin and means for 

